My brake lights arent working, blinkers, tail.

My brake lights arent working, blinkers, tail lights, hazards all working normal, I recently replaced the brake lights above the back window thats how I know they were all working ok, im kinda thinking its the switch by the brake pedal, if so, how does it come off. It swivels but I dont wanna break anything, I checked the bulbs and they all seem ok, I only eyeballed them though. I find it wierd that they all went out at the same time